Tonight's facts

According to the government, drug traffickers in Mexico receive nearly $14 billion in illicit drug sale revenue each year.

(CNN) -- Here are some facts from tonight's broadcast that you might find interesting.

DRUGS

The U.S. Government estimates that Mexican traffickers receive more than $13.8 billion in revenue from illicit-drug sales to the United States; 61 percent of that revenue, or $8.5 billion, is directly tied to marijuana export sales. Americans spend $65 billion on illegal drugs each year.

Source: Office of National Drug Control Policy

"The extensive licit cross-border traffic between the two countries provides ample opportunities to deliver their illicit products to the U.S. market."

Source: State Department's INCSR: page 13

VISAS

All the hijackers sought tourist visas. Hani Hanjour, believed to be a pilot on AA #77 that crashed into the Pentagon, had a student visa and was admitted for a stay of two years.

Source: 9/11 Commission

Hijacker Khalid Al-Midhar on AA #77 that crashed into the Pentagon, was here on a B-1 visa, but his B-2 visa had expired.

Marwan Al-Shehhi, believed to be a pilot on UA #175 that crashed into South Tower of the World Trade Center, was here on a B-2 visa.

Source: FBI

RAMOS AND COMPEAN

From February 1, 2005 to June 30, 2007, there were 1,982 incidents where Border Patrol agents have been assaulted. These assaults include rockings, physical assaults, vehicular assaults as well as shootings. In response, Border Patrol agents have responded with the use of deadly force on 116 occasions, with 144 agents discharging their weapons during these 116 incidents. Thirteen assailants died as a result, and 15 incidents ended with the assailants being wounded. Of the 144 agents involved, comprehensive investigations were formally conducted, and not a single agent has been criminally prosecuted for their actions.

Source: BP Chief David Aguilar

SANCTUARY POLICIES

An August 14, 2006 report produced by the Congressional Research Service listed 31 cities and counties that have "don't ask, don't tell" sanctuary policies in place. They are:

* Alaska and Oregon both have state-wide policies that forbid state agencies from using resources to enforce federal immigration law. Oregon law, however, does provide an exception to allow law enforcement officers to share information on immigration status with federal authorities with those arrested for criminal offenses.